Producer Price Index by Commodity: Intermediate Demand by Production Flow: Inputs to Stage 4 Goods Producers, Goods Excluding Foods and Energy (WPSID54113)

U.S. Bureau of Labor Statistics, Producer Price Index by Commodity: Intermediate Demand by Production Flow: Inputs to Stage 4 Goods Producers, Goods Excluding Foods and Energy [WPSID54113], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WPSID54113, .